#!/usr/local/bin/lua

-- number类型
local a = 1		-- 局部变量
local b = 2
c = 3			-- 全局变量
print(a + b)

print("6" + c)

a, b = 1, 2
print(a,b)

a, b, c = 1, 2
print(a, b, c)

a, b = 1, 2, 3
print(a, b)